Service Manual

Rev. J
Greensmaster 3250--D
Hydraulic System (Rev. I)
Page 4 -- 40
Gear Pump (P2) Flow and Implement Relief Valve (R5) Pressure Tests (Using Tester with
Flowmeter and Pressure Gauge)
High Pressure
Low Pressure
Return or Suction
Flow
P1 P2
ENGINE
RPM
GEAR PUMP
R5
TO TRACTION
CHARGE CIRCUIT
TO STEERING AND
LIFT CIRCUITS
TO REEL MOTOR
CIRCUIT
TESTER
PUMP DISCHARGE FITTING
CIRCUIT
FROM LIFT
RELIEF VALVE (R5)
FROM HYDROSTAT
SCHEMATIC FROM MACHINE
WITH SERIAL NUMBER
UNDER 220999999 SHOWN
PHOTO SHOWS RELIEF VALVE (R5) AS USED IN
MACHINES WITH SERIAL NUMBER UNDER 220999999
Procedure for Gear Pump (P2) Flow Test
1. Make sure hydraulic oil is at normal operating tem-
peraturebyoperatingthemachineforapproximatelyten
(10) minutes.
2. Park machine on a level surface with the cutting
units lowered. Make sure engine is off and the parking
brake is engaged. Make sure the hydraulic tank is full.
Hydraulic
System